The pressure in the balloon increases.
Destructive force
It’s a force that slowly wears away mountains and other features on earths surface, such as erosion.
Answer:
The Work Done is 
Explanation:
Since , the equipment is pulled in horizontal horizontal plane.
Therefore, its normal reaction must be equal to its weight.
So, Normal reaction, 
We know, frictional force , 
(Where N is Normal reaction and
is coefficient of kinetic friction )
Therefore, 
We know ,

( Here D is distance covered by the force)
Putting, D=1000 m.
We get , Work Done
Approximately 10,969,350,000.000. (i’m not sure but confident) :D
Answer is 76,352 just look it up